Cash-register.



A. J. H. BURNETT. CASH REGISTER.

APPLICATION FILED AUG.4, 1910.

1, 1 19,344, I Patented Dec. 1, 1914 4 SHEETS-SHEET 1- Yiinessfg/ Iventor w W J/rihurJ/ifiur/wit A. J. H. BURNETT.

CASH REGISTER.

APPLIOA'IIOH IILB AUG. 4. 1910.

1,1 19,344. Patented Dec. 1, 1914 Q x x Attorneys A. J. H. BURNETT.

CASH REGISTER.

APPLICATION FILED AUGA 910 1, 1 1 9,344. Patented Dec. 1, 1914.

SHEETS-8 BET 8.

Witnesses Inventor by Attorneys A. J. H. BURNETT.

CASH REGISTER.

APPLICATION FILED AUG.4, 1910, 1 ,1 1 9,344, Patented Dec. 1, 191i 4SHEETS-SHEET 4.

Inventor ZZ h by V ttornpw Witnesses UNITED sTA'rns PATENT OFIETIOE.

ARTHUR JOHN HERBERT BURNETT, 0F WIMBLEDON PARK, ENGLAND, ASSIG-NGB. 0T?ONE-HALF TO ROBERT GOODSON, OF HOLBORN. LONDON, ENGLANID.

CA.SHREGISTER.

Specification cf Letters latent.

Patented Dec. 1, Mil 4.

Application filed. August 4, 1910. Serial No. 575,434.

To all 111/107 it m concern Be itv known that I, ARTHUR JOHN HER- BERTBrennan, :1 subject of the King of Great Britain, residing at 1 Stuartroad, \Yimhicrlon Park, in the county of Surrey lillglllllil, haw.invented certain new and useful Improvements in (lash-Registers, 01which the following is a specification.

This invention relates to mechanism for use in connection withcalculating machines and the like. wherein the performance of thevarious arithmetical processes is effected from a ke vhoard by means ofa. series of keys adapted to impart varying degrees of movement. to oneor more indicating drums mounted within a casing in such a manner thatthe result of each calculation can be seen through an aperture or windowin the casing of the apparatus.

The invention comprises an improved ar rangeinent of. carry on mechanismfor causing the movement of one counting drum to impart a predetmaninedamount of move ment to the next counting drum and from that drum to thesucceeding drum and so on throughout the series of drums. the variousmovements hoing effected in a positive manner without an posi'loility ofany of the drums occupying a position in which their various indicationscan become out of aline ni nt with each other or with the inspectionaperture in the casing of the apparatus. in important feature of thecarry on mocha nisin comprises a fixed cam interposed no tween each olthe various counting drums the said cam being of such a iornmtion'as tocaus a niovahlv inruinted member carried l) one drum to engage during aportion of its revolution with the driving wheel eonnccte l with thesucceeding drum and to iirpart a predetermined amount of mo e ment tothe latter wlwreuyon the. said meniher is disengaged by the cam andtravels around the same during the remaining 'portion of its rrvohitionwithout imparting any further motion to the driving wheel.

The. invention also comprises a keyboard in uhich the keys are connectedto the driv jug mechanism for actuating the counting drums through theintervention of a lost motion device by means of which each key receivesthe same amount of movement in effecting itsv lull stroke. the said lostmotion being arranged to come into operation in advance of theefl'ective part of the stroke whereby in the event of one key receivinga complete stroke While the first n'ientioned key remains in. its partlydepressed condition. the amount of movement transi'i'iittcd to any ofthe. counting drums by the clopros sion of the two keys will be the sameth at which would have been transmitted by the. first mentioned key ifthe latter had rcoeived a full stroke in the first instance.

The invention further comprises impro ed means for compelling each ofthe key lovers to receive a full stroke before it can again return toits normal or top pos tion, a lock-- ing device for preventing the cashkey of a cash till from being actuatetl hefore any of the calculatingkeys have been actuated, indicating niechanisn'i for showing the amountof a purchase in a. cash till, a zcroiriing device for returning all thecounting drums to zero. indicating mechanism for indicating details upona strip of paper in addition to indicating the ealeuiations upon thecounting drums, and mechanism for rotating the counting drums in onedirection or the other for the purpose of enahling the arithmeticalprocesses of multiplication and subtraction to he pertornn-tl.

In order that the said invention may he clearly understood readilycarried into effect I will describe the same with reference to the.aceomiiianving drawings which illustrate the invention as applied to acash till.

Figure l, is a horizontal section of a rash till showing moreparticularly the t-. li;-.lir.ii and carrying on nicchansu: andmechanism for actuating the same. hi". :2, a scrtioiuil side elevationtaken approximately on illlif l, 2. of .liig. 1. Fig. 2.4, is a detachedview of the carry on mechanism drawn to an larged scale. Fig. "r, is atransverse section taken on line l, l, of I5. .lrig. fl. is a similarview looking in the opposite rlircotion. Fig. 6, is a section takenapprox mately on line (5. 6, of Fig. 1, showing the racks together withtheir operating pioions. Fig. 7, an end elevation showing the fullstroke mechanism and drawer I'Bltodlll mechanism. Fig. is :1V detachedview ol the drawer releasing meri'ianism. Fig. 9, is a detached view ofthe indicating mechanism shown in Fig. "2. Fig. 10, is a detached \iewof a form of indicating mechanism which may be employed for recordingdrtails and totals upon a strip of paoer in $111 dition to indicatingthe calculations upon cirlit

the drum. Fig. ll is horizontal section showing a form of mechanism forreturning the drums to zero. Fig. 12, is a transverse section takenapproximately on. line i2, 112., of Fig. ll. Figs. 13. ll and. 1.5, aredetached views of a portion of the scrolling mechanism. Fig. 10, is adetached View of a modification of the totalizing mechanism adapted toperform the arithmetical processes of multiplication and subtraction.Fig. 17. is a front elevation of a portion of the modi fied form of thetotalizing mechanism. Fig. 18, is a transverse section taken on line 18,18, of Fig. 17. and Fig. 1.9. is a s milar view taken on line 19, 9, ofFig. 17.

The totalizing mechanism for counting or adding purposes comprising aseries of to tatahly mounted. drums A, A, A A which bear the requiredindications and correspond in number to the character of the coinage, orof the sums to be added. In the arrarugement shown, the drum Arepresents the pence drum, the drums A A? the shillings drums, and thedrum A the pounds drum. but obviousl these drums could be arranged toindicate any other coinage by slightly modifying the mechanism by whichthey are actuated.

B. B, represent two sets of keys of which the set B directly controlsthe pence drum A and the set E the shillings drum A, the drums A Areceiving their motion from the carry on. mechanism appertaining to thedrum A. It is also obvious that any required number of sets of keyscould be employed according to the particular coinage or sums to bedealt with. Each of the aforesaid drums is rotatably mounted upon ashaft a that extends across the machine. The first drum A 01 the seriesreceives its motion from a rack 2 that is slidabl v' mounted in guides(I? carried by the end frame of the machine, and receives its mo tionfrom the keyboard B in the manner hereinafter lilesi'zrihed. Gearingwith the rack 11' is a pinion a. rotatably mounted upon the shaft or.This pinion is rigidly connected to a disk a in the periphery of whichis a depression (13. The dish a carries a spring controlled pawl a thatis adapted to engage with a ratchet Wheel (2 arranged in. rigidconnection with the first drum A, the said, :atchet Wheel being rigidlysecured to a toothed wheel a forming part of the first drum A. Movahlymounted upon a shaft (1? extending across the machine behind the shaft ais a spring controlled lever a. carryinp at its free end a transverselyarranged pm a. that enters the depression a? in the disk o as soon asthe said disk is returned to its normal position after any of the keysof the set B have been actuated. When the pin is in this position it(Ilffr eyes with the teeth of the wheel a and prevents orerrunning ofthe drum A. The

indications upon the drum A are brought into and retained in alinementwith those of the succeeding drums after a full stroke has been mpartedto any of the operating levers ll for changing" the position of thedrum. .ln the arrangement shown, this alining ()[NJZll lOll is elll-ctedby i'neans of a spring controlled lever a" movably mounted upon a shaft0 extending across the machine, the free endof such lever being suitablyshaped to engage with. the toothed driving wheel a interposed betweenany two adjacent drums is the fixed carry on cam C. This cam is shapedin accordance with the amount of nwvcment that is to he imparted fromone drum to the next succeeding drum, and in the eirample shown the cambetween. the first and second drum is so arranged that one completerevolution of the first drum causes the second drum to advance to asutllcient extent to bring the next succeeding indication thereon intoView. For this purpose the cam is made in the form of a disk having aportion of its periphery cut away as shown. at (2 (Fig. at), for therece tion of the above mentioned movab y mounted member. This member asshown comprises a pin a projecting from a lever c that pivoted to thefirst drum A, the said pin being of such a length as to extend acrossthe aforesaid driving Wheel 0 of the second drum A. This driving wheelhereinafter referred to as the first carry on wheel is fixed to a sleeveprojecting from the second drum. lVhcn the first drum has completed apredetermined portion of its movement. the pin c on the lever 0 entersone of the recesses between the teeth in the aforesaid. carry on Wheeland rotates the second drum A. until the rotation of the first drumcauses the pin 0 to pass from the ent a 'ay portion in the carry on camonto the circular peripheral portion thereof in which position itbecomes disengaged with the carry on Wheel (1 and travels around suchperipheral portion Without imparting further motion to the second drum.In order to insure that the pin 0 will follow the contour of the cutaway portion c of the carry on cam C however quickly the ma chine may heoperated. a spring controlled lever o is pivoted on the shaft a and isprovided at its-free end with an extension 0 having an, inclined portiona (Fig. 5). This lever is also provided with a pin 6 that normally restsin a a in a. dish a and engages with the teeth oia Wheel a that isrigridl connected with the second drum. When the pin 1" comes intocontact with the inclined portion 0. it lifts the lever (3- against theaction of its spring as it passes between the said inclined poi tion andthe cut away portion oi the cam. This movement of the lever alsoreleases the pin 0 from the Wheel (L during the time that the pin 0' isactuating the carry on Wheel and allows the latter to he moved throughthe space of one tooth, whereupon the pin 0 again engages with therecess a in the disk a and locks the drum A in position.

In order to retain the indications on the second drum A in alinementwith the indi cations on the first drum, a spring controlled lever a ispivoted upon the shaft (1) and is suitably shaped at its free end toengage with the teeth of the first carry on wheel c The mechanism forimparting motion directly to the second drum A from the sec. ond set ofkeys ll is practically a repetition of that which has been describedwith reference to the first drum A, ind comprises the rack o slidahlymounted in guides (1?, the pinion u. rotatably mounted upon the shaft a,the recessed disk 0. that carries the pawl o and the ratchet wheel afixed to the ratchet wheel (1.. This whcel prevents over running of thedrum A by reason of the transverse pin 0" normally taking up a positionbetween the teeth of the ratchet wheel a, the said pin in this casebeing arranged to project from one side ot' the lever c.

The ca ry on mechanismv between the second and third drums A, X is thesame as that which has been described with rcfcreuce to the lirst twodrunu with the eption that the carry on cam is so shaped that evercomplete revolution oi the drum A w ill in art halt a revolution to thedrum A. For this purpose two diametrically opposite teeth. of th secondcarafe on wheel ar arranged to extend from the face of such wheel. andthe carry on cam is so shaped that when the parts are in the podtionahoivn in Fig. I}. t will allow the pin c" on the pivoted lercr toengage with osio of the aforesaid teeth audio remain in engagement withsuch tooth until the second drum has completed hall a revolution. Thepin c now travels over a portion of the cam that is; or" a greaterradius and is there,- h lifted out or engagement with the toothwhereupon the second drum can ontinue the second half of its revolutionwithout imparting, any l'urthci motion to the c ond carry on wheel wuntil the pin r comes into c ntact with th second projecting tooth Ifand repeats the allure na -i ioued operation. th stop r on the l veractin; n the. manner alime descrilcd with reference to the pin and alsora ns; to pir 'cllt the carry on wheel r from me running. lv varying theshape of the warm on cam an.

prmletermi:red portion oi a nevxilutiou can he imparted to the nextwerceding drum lrv o71e-compleie revolution oi the priwedingr drum. 7

The arrangement above (leacrr pcated between the third and fourth drumswith the exception that the carry on cam (I is similarly shaped to thecarry on cam shown in Fig. l, and the two projecting teeth are notemployed on the third carry on wheel 0 l n each case the motion from onedrum to the next succeeding drum is etlccted by the pin 0' on the levercarried by the preceding drum, the lixed car on cam (71 and the ca rryon wheel 0" ol' the succecding. drum. the levers il allecting' thealincment oi the indications on the drums, and the levers 2 insuring thepins 0 following the contour of their respective cams and also lockingand preventing over running of the carry on wheels.

The two sets of keys, ll. B", liercinhetore referred to (Ul1'3l')ll. t.a number ol levers I) each of which is arranged to impart apredetermined amount of movement to its respectim drum. l lach oi thelevers is pivoted intermediate o its length to a shalt Z! extendingacross the machine, the operating endof each lever heing provided with akey hearing the required indication. Each lever connected at, its oppoite end h a pin and slot connection with a. rack 72 that is slidablymounted in guides 5". t extending acro s the frame of the machirua oneset of racks ocing provided for (will set of kevs l3 B. Each set ofracks is prr'n'idcd with a set of pinions I) rigidly lixed upon a shaftIf that is supported in hearings 6* so as to occupy a, pmition adiaccntto and in 'l'ront of its (.'.()ll0i-l')(llllliHQ: llach set oi pinionsifpro ville-d with a driving pinion or toothed wheel 7/ that {gears withth' l ori aid slid ald mounted driving ratk a. The teeth of each uprightraclvi vary in niunlier according to the an'iount of i'iaw'en'ient thatthey are intended to impa t to their rcrspective counting drum. and eachsuch rack together with its operating lever is returned to its normalposition a'l'cr operation, l. v means of a spring f) connected to eachoperating lever and to a haft f extending: ac: the nniehine. \l'hr-n theracks" are in their normal position the lowermost tooth ol each rachreds: upon the. guide Zr. l n this position the teeth of all the racksare dis ngaged from their re.- spcctive pinions and a certain amount oilost motion takes place (llll'lllil the upward trawl of each I'iHlilltffilt. it c-unmences it cil'ective strolie. the said lost motion increasing as. the teeth upon each rarlt do rrcase in iumhcr. llv thismeans each key is compelled to receive the same amount of morcmcnt for(ll titlIJQ' its lull strolu. and in (r'lr'lvl to give an e'iproxiinatclfv oxen tom-h to all the New. r-trori-r lting springs W"are advantage-aid liil l rclll in connection with those 1' ad u-vcrswhich iilll ivr the greitier olMrtion ol' loz-zt motion.

Any suitable deviee may be employed for eoinpelling eneh of the leversto receive a full stroke before it can ngzain return to ire normal ortop position. A preferrr-(l construction of meelmnism for eileeting thispurpose roniprisw 2! looking hnr H for each set of racks, and means forretaining such lmr in spring contact with ratchet teeth fOl'lllC(l oneneh of the racks If", For etlecb ing this purpose each locking hm; (imounted upon arms 1' that 'mjv'iect from a {rotntuhly mounted upon :1eilmlt 9' extending arrow; the rear of the machine, any suitable form ofsprings being empioyed for causingthe bars G to bear against theirrespective of ranks. Erich looking lmr (r is provided with a rolesisingdevice for temporarily withdrawing the bill out of eoni'net with theratchet teeth during: a: portion of the rlosing ino z'nent oi the (hiform of (liBVH, for (fleeting this pnrporie. e'oniprisesn n 5; eniryingan arm a and pivoted to one, and frame of the mnehi'nix and :1 releasinglover that is rihio pivoted to the said end frame and arrnnwd to engagewith an arm :7 pZ'UlGCllYlQ from one end of the sleeve '1 li'pimdepressing :my one of the l LfjJS, its Corresponding rnel; is mined intoengage ment with re olive pinion.) whers'ui 'ion the set oz iiniom tovliieh sueh pinion helongs i rotated through a 3PlCllQti'lllllIKKlportion of n revolution. in m ron Anne with the nuinlzer of teeth uponthe afor said l'illflf. Th s n'iovenieni is trnnhmitled lo the (hiring;pinion which eonseqnently muses the driving riiek u to travel toward thehack of the ninehine in opposition to a pull that is exerted upon gin-i1reek l v chain a fll'ltl spring a. This chain is non neeted at it to i eincl: 0/ and to the afores oidnrrn (Wthronghthe stud a Theolore midmovement of the rackrotntese the pinion together with the recessed disha. and piwl u" whieh mvels over the El h of the rnt het wheel 7* withoutiinpii any motion thereto After a romp te atroho has l ven im inir d tothe aim and key, the dinner ii of the nah till can he opened in theordinary nuinner by depressing the oash hey F. The lever f of this key'is eonnected to a wiring rontrolled hell ernnlc lever f pivoted to thehose of the llliltlllflU oi; the rear of tho drawer ll. (Figs. 3 and T)and when the said hey is depressed th vertnral arm of the hell erzml;lever engages with a spring controlled latch f (Fig 3? and dieen nigesthe same from a. stud f fixed to th s hone of the mzlohiz'ie, whm'eiiponthe, drawer open; :iutonmtieully l'lirougl'i the in tervention of thespring that is usually employed for elleeting such purpose. l'pon elming the drawer after it has lieen opened to its full extent, an flilll2 that is pivoted in, one side thereof engages ith the profit-o tion aon the lover a and turns thelatter about its pivot, whereupon the cam gaetuates the releasing lever 9 to tempor :n'ily release the locking ha!i} from the ratchet teeth 9. As soon as the locking hm" .to its originalposition by the spring a and the cum is era-respondingly moved andallows the releasing imr (l to again errgzign with the ratchet teeth {Ion the hnclte of the lllilia Z Every time the ma l; a" relum' to heoriginal position, it living-'4 the as in the disk 1'1 nndernezilii elmtrzinnra' ;r pin 11 which then engage iti: i ho teeth of the ratchetwheel a and grew-dis m ruining of the latter.

A suitable form of locking devil e for pro- \en ing the (ash key F "run:being; desprw-rd and the drawer E opened hofore any of the heys b havebeen rlCtlliIlilll, eomprii s a hell ernniderer H, (Fig. 63 and acranked lull, ll that is pivoted to the upper of the eiuil te andextends neroe all of the key leiere The lever ll nvoked in 7 nor tion ofthe mnehine, frame in 'fiont or the rnek i1" and is nornndly mpported inthe pointiorr shown liv it fixed stop 71 that en gage-h with a h.izontnl arm of such lever when all the keys are in [lit-ll normal oruppern. t position. hen the lever H is in this oofition, ite: vertiezilarm einnee; (ii-- reetlv o er the lever f of the Ei' ll horl? andprevent; the hatter from Win51 actuated MIMI} however no any o' he lov s5: ore. perntrdl the cranked lJf-ll :l infill it eouuw into eontnrt ninelu imntfil min of the lever H and turn, the rrtiea} Ml'fi thereof out of:dinenu with {h i xer in indicating drum J for ezi'eh ""(i kevs B ll.lilarh drum hears the l'li lil l indie: Lions and is rotntnhly mountedegion bhufl j extending aeross the top or ill); machine, am of the said.indieatiom lining: eapnhle of being brought into View in or c-ordnneewith the amount of the purchase. In the drawings one sit-eh drum only inshown togetherwith the mechanism for w mating" the some, (Figs, and 9).Th moehnnisin comprises a pinion i that r: rigidly fixed noon the pinion:hnft Zr? and new; r-onliinimllv with a slidulrly.uionixrwl moleenpported in the glllfil .s 5*, in med abo e this rack is anotl'iermail; j :sllil' ni einte i in a guide j and arranged to wntixnmily witha pinion that is fixed to the onion J. Also fixed to such ti on is aratchet Wheel j, and pivotallv mounted on a vhat't that extends acrosstl "rear poriion of the machine is a lover g Jfl'lttkl at upper end witha spring 'ull'fu llsl pawl nhirh allows the ratrhet j to he :otateii inone direction when tin .6 (l pawi is in engagement with the her-l. The lwer eml f this lever extends into proximity to the base of the machine,and is atlaptetl to be ere fed hr a spring? 1 tin-. is lix'wl to the lof the drawer i). i ins-5i any of the keys are z'lepre'r sinl th a'nmnntoi motion that is t lnsn'iitteil from sneh hers: to the pinion v t 7raises the. lllt i'n illltl transom a (rorr 'epoiuiiiug- {lino-intmotion to the pinion I with the result that the YQf'llliiQllindicationupon the drum ir brought into \iew. Upon depressi'ng'r? therash key the drawer opens and. the lever j" assumes a position in whichits pawl j i s disengaged with the ratchet wheel j the raehs beingretained in their raised position through the interrention of thelooking bar G, -On again closing the ilran'e", the spring i actuates thelever 1'0 enilinre the pawl f with the ratchet h ez i" i rein!rrtaiiiing the indicating drum in its ahoi'e iti-oneil position and thethat has i actuated returns to its n rmal position i also? with theraelt Wh n mother he; depressed, if such key (leiwniination. a spring j1e t oruin J to a position in the eon inn lower denominathe (imam willhe brought into if a no sale key is operated to iin: bar H and the ehvto allow the low I to he depi n to open the he drum 3 is returned untila stop I p with a fixed stop j in ition a zero imlieation upon therozaeht into view". This also hap nine to set of ween. (lfi} l(xfi('i ito another i Q arrangement rennin Hi infirii key of a jinatio'naetnateil. b'ums A. A A in a tier by means ivun r-i can be returned l.and in the arrangeii. to '15. the. device K that actna ted I oeenpying aposition in; of the nniehino. The reoi mils over the, top of each rat-nod levers (2 in proxl!'lli to ta l p er are formed upon the saii'ilover-' a- -l eazsh end to one arm of a boil aranlr no 1: that is suitably pivoted to the machine frame. The other arm of the bell crank leverengage. with one arm of a lever 71: that pivotoil to the machine frame,the opposite arm of sneh lever being engaged by a cam .76 that is folmed upon the end of a slotted lever 12 This lever is connected o a pin711 to a slid-ably mounted rack is that carries the :2 lozesaid zero kevK. Gearing: with the rook 7b" is a pinion It fixed to a clutch memberZrrmatahiy mounted upon a shaft k that is slitiahly and rotatablymounted in suitable hearings in the machine frame. 6 represents anothere nieh membeithat is rigilly fixed upon the sha ft 75 and is normallyretained in engagement with the clutch member M by a. spring Fixed uponthe shaft i'r" are two pins In which normally orenpv a position out of amoment with the path that is described by two pins 71: iixeil on twotoothed wheels 7c that rotatably mounted upon the shaft Ilav llachtoothed Wheel Z, gears with a toothed wheel. is vthat is fixed to itsrespective counting rlruin and each wheel is is retained in aline mentwith its respective wheel is or distanoe pieces If which are slottedwhere required for the passage of the pins it. Each of the abovementiol'ied eluirh members is formed with an inelined face as shown in lne l1. l3 and 15, and with a 'n'ojeetion At" that is adapted to heengaged by a pi voted catch lever 76" having a recess Z1 to receiveeither of th projections in". To rezero, the Zero key K is depressed toits fnli extent. This movement imparts one and a, hall resolutions tothe clutch member k the first half revolution moves the clutch member loin an enciwise direction Without rotating such member and causes the twoclutch members to assume the position indicated in Fig. 14. with theresnlt that the shaft is is moved in an endw' direction and brings thepins in into alinement with path described by the pins Filightly theln'ojlfltion 7 on the eint f-h invinher 7n engages with the coriiesponrnQ pro" jeotion on the rlutoh member if? the first mentioned projectioncomes into ('ontaot with the, inclined end of the catch later 0 21mraises the latter clear of the projection on the clutch member 2'5". Theprojection on the first clutch member then engages with the projectionon the seeontl clutch member and rotates the latter th ough one completerevolution with the result that the pins Z2 on the shaft is are broughtinto alinement with the toothed pins on the toothed wheels In which thenreturn the r'ionnting, drums to zero. Previous to the effecting of thisoperation and during the initial movement of the zero kev K the cam 7:1on the slotted lever is aetuates the releasinn bar K to engage with thetail pieces k of being automatically withdrawn from the teeth whenrequired, a series of pinions rotated by such racks, a springcontrolled-1ndicating drnm for each set of keys, a rack .with suchpinion and arranged to receive motion from the first mentioned rack, a

ratchet wheel rigidly secured to each indicating dru'nn'a drawer in saidcash till nor- -mal]y urged into open position, a pivoted lever providedwith a pawlth'at occupies a position away from such ratchet wheel whenthe drawer of the cash till is open and means for bringin such pawl intoengagement with the ratchet wheel when the drawer of the cash till isclosed and for retaining such wheel in position until the lockin bar isreleased from the ratchet teeth 4 owned 011 the racks that are actuatedg) the depression of any of the operating eys. a 3. In a machine of thecharacter described, a reciprocating rack, keys associated with the rackfor moving the'same, a pinion meshing with the rack, a disk rigid at oneside of the pinion and having its edge flush with the outer edges of theteeth of the pinion, the disk further having at one side a notch in itsedge-of a depth corresponding to the throat of the adjacent teeth,

"a counting drum,' a ratchet wheel fixed to 3 the counting drumconcentric to the pinion,

in s ring pressed pawl carried by the pinion anc engaging the ratchetwheel, a spring controlled lever, a transversely extending pin on theouter end of the lever being normally urged by the latter against theedges 40 of the disk, and means controllable by the keys engaging thelever to raise the same from the disk and release the same upon apredetermined movement of the pinion.

4. In a calculating machine, sets of oper: ating keys, racks connectedto the keys to be reciprocated thereby, a locking bar adapted forengagement with the teeth bf t racks, said bar also being adapted forautomatic releasing from said teeth, a set of pinions meshing with theracks, a spring controlled indicating drum for each set of keys;drumoperating racks connected to the drums and meshing with a respectivepinionin each of the said sets of pinions, a drum-pinion rigidlyconnected to each indicating drum, a drum-rack meshing with each of thedrumpinions and adapted to receive motion from said first racks, aratchet wheel rigid with each indicatin drum, a drawer in the niachinenormally urged into open position, a pivoted cash lever, a pawl on thelever normally held from said ratchet wheels by said drawer when open,and means associated with the pawl for releasing the same when saiddrawerlis closed whereby the pawl engagesthe ratchet wheels and holdsthe same from movement until the locking bar re leases said first racks.

In testimony whereof I aflix my signature in presence of two witnesses.

ARTHUR JOHN HERBERT BURNETT. I I

Witnesses:

lVAL'rnn J. SKERTEN, .l/VILLIAM HENRY HARVEY.

